Table Of Contents - Nordyne M4RC Upflow Installation Instructions Manual

SAFETY INFORMATION .............................................3
REQUIREMENTS AND CODES ..................................4
GENERAL INSTRUCTIONS ........................................5
Manufacturer Warranty ............................................5
Combustion Air Quality ............................................5
Installation in a Garage ............................................5
Heating Load ...........................................................6
Clearances to Combustible Materials ......................6
COMBUSTION AIR REQUIREMENTS ........................6
General Information .................................................6
Installation in Confi ned Spaces ...............................7
Air From Inside ....................................................7
Outdoor Air from a Crawl Space or
Vented Attic .........................................................7
Outdoor Air Using Vertical Ducts ........................7
Outdoor Air Using Horizontal Ducts ....................7
Air Directly Through an Exterior Wall .................8
Alternate Method of Providing air from
Outside ...............................................................8
Installation in Unconfi ned Spaces ...........................8
VENTING REQUIREMENTS ...................................... 10
Vent Pipe Length and Diameter ............................. 10
Vent Pipe Material ................................................. 11
Vent Pipe Installation ............................................. 11
Outdoor Terminations - Horizontal Venting ............ 11
Outdoor Terminations - Vertical Venting ................. 12
Vent Freezing Protection ....................................... 12
Condensate Disposal ............................................ 13
Concentric Vent Termination .................................. 13
Existing Installations .............................................. 13
CIRCULATING AIR REQUIREMENTS ...................... 14
Plenums and Air Ducts .......................................... 14
Return Air Connections ......................................... 14
Supply Air Connections ......................................... 15
Acoustical Treatments............................................ 15
FURNACE INSTALLATION ....................................... 15
General Requirements .......................................... 15
Requirements and Codes ..................................... 15
Upfl ow Furnace Installation .................................. 16
Downfl ow Furnace Installation .............................. 16
Alternate Attachment Method ........................... 18
Bottom Panel Removal .......................................... 19
Alternate Bottom Panel Removal ...................... 19
Pressure Switch Relocation .................................. 19
Inducer Assembly Rotation ...................................20
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TABLE OF CONTENTS

Direct Vent (2 - Pipe) Applications ......................... 20
Vent and Inducer Assembly Options ..................... 20
Accessories ..........................................................21
Finish Flange ....................................................21
Rubber Grommets ............................................21
Inline Drain Assembly .......................................21
PVC TEE, Reducer, and Hose Barbs ...............21
Condensate Drain Lines ...................................22
Filter Retainer Brackets ....................................22
Ventilaire™ Bracket...........................................22
Vent Couplings ..................................................23
Alternate Vent Pipe Installation .............................23
GAS SUPPLY AND PIPING .......................................24
Leak Check ..........................................................24
High-Altitude Application .......................................24
Conversion to LP/Propane ....................................25
ELECTRICAL WIRING ...............................................29
Low Voltage Wiring ................................................29
Line Voltage Wiring................................................29
Grounding .............................................................29
Twinning ................................................................30
START-UP & ADJUSTMENTS ...................................31
Pre-Start Checklist ................................................31
Start-Up Procedures .............................................31
Verifying and Adjusting Input Rate ........................31
Verifying and Adjusting Temperature Rise ............31
Verifying Burner Operation ....................................31
Verifying Operation of the supply Air
Limit Switch ...........................................................32
OPERATING SEQUENCE .........................................32
Heating Cycle ........................................................32
Cooling Cycle ........................................................32
Fan Mode ..............................................................32
MAINTENANCE .........................................................32
Air Filters ...............................................................33
Blower Compartment ............................................33
Cleaning of Burners ..............................................33
Heat Exchanger and Burner Maintenance ............33
Lubrication ............................................................33
Vent System ..........................................................33
DESCRIPTION OF COMPONENTS ..........................34
TROUBLESHOOTING ...............................................34
Upfl ow Furnaces ...........................................23
Downfl ow Furnaces .......................................23